/*
 * The contents of this file are subject to the terms 
 * of the Common Development and Distribution License 
 * (the License).  You may not use this file except in
 * compliance with the License.
 * 
 * You can obtain a copy of the license at 
 * https://glassfish.dev.java.net/public/CDDLv1.0.html or
 * glassfish/bootstrap/legal/CDDLv1.0.txt.
 * See the License for the specific language governing 
 * permissions and limitations under the License.
 * 
 * When distributing Covered Code, include this CDDL 
 * Header Notice in each file and include the License file 
 * at glassfish/bootstrap/legal/CDDLv1.0.txt.  
 * If applicable, add the following below the CDDL Header, 
 * with the fields enclosed by brackets [] replaced by
 * you own identifying information: 
 * "Portions Copyrighted [year] [name of copyright owner]"
 * 
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 */

package com.sun.enterprise.admin.event;

import com.sun.enterprise.admin.event.AdminEvent;

//i18n import
import com.sun.enterprise.util.i18n.StringManager;

/**
 * DynamicReconfigEvent - emitted by DAS upon changes
 * "dynamic-reconfiguration-enabled" attribute in "config" element
 */
public class DynamicReconfigEvent extends AdminEvent implements CommandEvent {

    /**
     * Constant denoting action code 
     */
    public static final int ACTION_DISABLED     = 0;
    public static final int ACTION_ENABLED      = 1;

    /**
     * Event type
     */
    public static final String eventType = DynamicReconfigEvent.class.getName();

    /**
     * Attributes
     */
    private int      actionType;

    // i18n StringManager
    private static StringManager localStrings = StringManager.getManager( DynamicReconfigEvent.class );

    /**
     * Create a new DynamicReconfigEvent.
     * @param instance name of the instance to which the event applies
     * @param action type of action - one of DynamicReconfigEvent.ACTION_ENABLED,
     *        DynamicReconfigEvent.ACTION_DISABLED
     * @throws IllegalArgumentException if specified action is not valid
     */
    public DynamicReconfigEvent(String instance, int action) {
        super(eventType, instance);
        setAction(action);
    }


    /**
     * Get action type for this event.
     */
    public int getActionType() {
        return actionType;
    }

    /**
     * Set action to specified value. If action is not one of allowed,
     * then IllegalArgumentException is thrown.
     * @throws IllegalArgumentException if action is invalid
     */
    private void setAction(int action) {
        boolean valid = false;
        if (action==ACTION_ENABLED      ||
            action==ACTION_DISABLED)
            valid = true;
        if (!valid) {
			String msg = localStrings.getString( "admin.event.invalid_action", ""+action );
            throw new IllegalArgumentException( msg );
        }
        this.actionType = action;
    }

}
